A 58-year-old woman with known cirrhosis from MASLD presents with 3 days of worsening confusion and abdominal distension. Work through the immediate priorities before reading the sections below.
Cirrhosis is defined by diffuse hepatic fibrosis and nodule formation, disrupting normal liver architecture. It results from sustained hepatic injury across a range of etiologies: chronic viral hepatitis, alcohol-related liver disease, MASLD, autoimmune hepatitis, cholestatic diseases (PBC, PSC), and others.
Cirrhosis is broadly classified as compensated (no prior decompensation; 10-year survival approximately 50–80% depending on aetiology, MELD score, and presence of varices; EASL 2018, PMID 29653741) or decompensated (presence of ascites, variceal haemorrhage, hepatic encephalopathy, or jaundice; median survival 1–2 years without transplantation, though this varies markedly with number of complications, organ failures, and MELD score; EASL 2018, PMID 29653741).
Most complications of cirrhosis arise from portal hypertension — elevated pressure in the portal venous system due to increased vascular resistance from fibrosis and dynamic vasoconstriction. The hepatic venous pressure gradient (HVPG) is the gold standard measurement (normal 1–5 mmHg):
| HVPG | Designation | Clinical significance |
|---|---|---|
| ≥6 mmHg | Portal hypertension | Above normal (1–5 mmHg); still subclinical |
| ≥10 mmHg | Clinically significant PH (CSPH) | Threshold for varices, ascites, and decompensation |
| ≥12 mmHg | Severe portal hypertension | Threshold for variceal hemorrhage |
Ascites is the most common complication of cirrhosis, occurring in ~50% of patients within 10 years of diagnosis.
Pathophysiologic cascade of ascites formation
Diagnosis: Serum-Ascites Albumin Gradient (SAAG) ≥1.1 g/dL confirms portal hypertension as the cause. See SAAG & Ascites → for the full workup.
Management: Sodium restriction (2 g/day), diuretics (spironolactone ± furosemide), large-volume paracentesis with albumin infusion for refractory cases, TIPS for refractory ascites.
Spontaneous Bacterial Peritonitis (SBP)
Life-threatening infection of ascitic fluid without an intra-abdominal source. Must be excluded in any patient with cirrhosis presenting with fever, abdominal pain, encephalopathy, or clinical deterioration.
Diagnosis: Ascitic fluid PMN count ≥250 cells/mm³. Treat empirically — do not wait for culture results.
Treatment: IV cefotaxime or ceftriaxone × 5 days + IV 25% albumin on day 1 and day 3 (reduces risk of hepatorenal syndrome).
Secondary prophylaxis: Norfloxacin is not available in the US; trimethoprim-sulfamethoxazole (TMP-SMX) or ciprofloxacin are used indefinitely after the first SBP episode.
Portosystemic collaterals that form when HVPG exceeds 10 mmHg. Variceal hemorrhage is the most immediately life-threatening complication of portal hypertension.
Primary prophylaxis: Non-selective beta-blockers (propranolol, carvedilol) or endoscopic variceal ligation (EVL) for medium/large varices.
Acute variceal hemorrhage management:
- Airway protection, resuscitation (restrictive transfusion strategy — target Hgb 7–8 g/dL)
- Vasoactive agents: octreotide IV for 3–5 days
- Antibiotics: ceftriaxone × 7 days (reduces infection and re-bleeding)
- Urgent upper endoscopy within 12 hours: EVL is preferred
- TIPS if endoscopic therapy fails
Neuropsychiatric dysfunction caused by accumulation of neurotoxins (primarily ammonia) due to impaired hepatic detoxification and portosystemic shunting.
West Haven grading stages overt HE by mental status and neuromuscular signs:
| Grade | Mental status | Neuromuscular signs |
|---|---|---|
| 0 (covert) | Normal exam; deficits only on psychometric testing | None clinically apparent |
| 1 | Shortened attention, altered sleep-wake cycle, mild confusion or euphoria | Mild asterixis, fine tremor |
| 2 | Lethargy, disorientation to time, obvious personality change | Obvious asterixis, slurred speech |
| 3 | Somnolence to stupor, responsive to stimuli, gross disorientation | Muscular rigidity, clonus, hyperreflexia |
| 4 | Coma, unresponsive | ± decerebrate posturing |
Covert HE (Grade 0–1) is common and under-recognized.
Precipitants (find and treat): infection/SBP, GI bleeding, dehydration, constipation, electrolyte disturbance, medications (benzodiazepines, narcotics), renal failure, dietary protein excess.
Treatment: Lactulose titrated to 2–3 soft stools/day (first-line for overt HE and secondary prophylaxis); rifaximin 550 mg twice daily added to lactulose for secondary prophylaxis of recurrent overt HE; identify and treat all precipitants. All patients with cirrhosis should be screened for covert HE, which is common and associated with impaired quality of life and driving safety.
Functional renal failure in the setting of advanced liver disease and portal hypertension, in the absence of parenchymal kidney disease. Diagnosis of exclusion — first exclude hypovolemia and nephrotoxins.
- HRS-AKI (formerly type 1): Rapid progression. Median survival without treatment: weeks.
- HRS-CKD (formerly type 2): Slower progression, often associated with refractory ascites.
Treatment: Terlipressin (FDA-approved 2022) or norepinephrine + IV albumin. Liver transplantation is definitive therapy. See Hepatorenal Syndrome → for full management.
All patients with cirrhosis should undergo HCC surveillance with liver ultrasound ± AFP every 6 months. HCC is the most rapidly rising cause of cancer mortality in the US, and cirrhosis is present in ~80% of cases.
Early detection changes outcomes: transplant-eligible or resection-eligible HCC has excellent long-term survival. Late detection means palliative intent.